Alterations in the Immune-Fibrotic Axis Are Spatially Localized in the Aging Heart.
The immune-fibrotic axis functions as a vicious feedback loop where age-related chronic, low-grade systemic inflammation (inflammaging) drives maladaptive tissue repair and fibrosis, while senescent fibrotic cells in turn amplify systemic inflammation. In the aging heart, immune dysregulation and fibroblast activation...